Question

Slump and compaction factors are two different measures of workability of concrete. For a slump of 0 to 20 mm, what is the equivalent range of compaction factor?

• A. 0.50 - 0.70
• B. 0.70 - 0.80
• C. 0.80 - 0.85
• D. 0.85 - 0.92

Answer 1

The correct option is B 0.70 - 0.80

As the range of slump increases, the range of compacting factors also increases.

$\begin{array}{cc}\text{Slump in mm}& \text{Compaction Factor}\\ 0-25& 0.78-0.80\\ 25-75& 0.85-0.87\\ 50-100& 0.92-0.935\\ 100-150& 0.95-0.96\end{array}$